Bumping version to 0.7.0, SO 30 (minimum libopenshot-audio has not ch…

…anged)

Fixing a bug where a non-EOF frame is otherwise ready but still has n…

…o image data: instead of stalling indefinitely, it reuses the most recent non-future image and finalizes the frame. Added new unit tests to verify the fix.

Adding upscaling for crop effect + resize property - so cropping into…

… higher resolution content does not become blurry.

Bump version to 0.4.0 (SO: 27) for release of OpenShot 3.3

Bump version to 0.3.3, SO Version 26

Adding lock around SetCache method, which causes some crashes. Detect…

…ed in Sentry: OPENSHOT-1Q

Removing debug code

Bumping version to 0.3.0, SO 23, and minimum libopenshot-audio depend…

…ency to 0.3.0.

Merge branch 'release-20210904' of github.com:OpenShot/libopenshot in…

…to release-20210904

Update Version to 0.2.6 SO 20